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Keywords: convergence
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Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-111
... stabilized at 5 % after another 7 months. Further monitoring is planned to identify any long term creep in the room and pillar panel. 1. Introduction Although periodic convergence measurements cannot record continuous elastic and pseudo-plastic deformation of rock mass, 3D laser technology can be regarded...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-063
... are observed by several methods: measurement of workings' convergence, shelf and pillar deformation, and rock-layer deformation close to walls and ceilings. The frequency of measurements depends on the assumed accuracy. This paper describes the rock-mass monitoring methods applied in the Polish...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-124
... yielding support. To ensure the proper maintenance of the roadway the mine managers have to efficiently cope with the rock mass movements of various intensity (e.g. roof sag, floor heave, and horizontal convergence) as a result of the extraction pressure impact [1]. Artificial Intelligence lubosik...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-064
... games Engineering olympic stadium tower avellan Consulting Engineer convergence propagation PPV vibration Case History vibrometer Procedia Engineering 191 ( 2017 ) 504 511 1877-7058 © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-003
... stress at a point…"), Love (1944). Upstream Oil & Gas displacement rock mass behavior debernardi Simulation Artificial Intelligence three-dimensional model Politecnico knowledge management numerical method convergence excavation application landslide rock mass construction...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-115
... continued to deform. This observation was also verified by the convergence measurements. After all mining stopped, continued convergence was measured.The closure sta- tions in the back area of the trial site indicated events contributing to increased convergence (10 mm) dur- ing a prolonged period when the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-161
... structural geology borehole hangingwall loading Upstream Oil & Gas convergence operation pillar Reservoir Characterization alteration pyroxenite investigation hangingwall alteration Bushveld Complex Lonmin hangingwall separation metals & mining top contact hangingwall...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-152
...Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 The effect of over excavation on the time-dependent convergence of a drift in Callovo-Oxfordian claystone L.M. Guayacán-Carrillo & D. Seyedi Andra R&D...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-200
... ABSTRACT: The thorough and accurate measurement of rock mass deformation or convergence is often limited to the use of a small number of discrete point to point measurements. These measurements are often not representative of how a rock mass is responding to the excavation of material over a...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-106
... Abstract Convergence measurements have been conducted and interpreted in order to characterize the deformation behaviour of various layers of a salt dome in northern Germany. The evaluation and interpretation of the convergence data have shown a distinctive influence of the geological units on...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-136
... of the tunnel walls along different directions clearly showed important anisotropic behaviour, in accordance with the preferential directions of the main mechanical weakness planes. In this paper, the analysis of the convergence measurements is performed for the sections between chainage 1250 and...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-019
... Abstract This paper analyses the data monitored during tunnel construction in the Giumello gneiss formation of the Ceneri Base Tunnel in order to find the factors that have a major influence on squeezing convergences. The observed deformations were distributed non-uniformly over the tunnel...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-014
... overburden such rock represents extreme conditions for tunneling, resulting in large convergences and over breaks. Based on the conclusions made after the construction of first two tunnels through Karavanks some key technical solutions, for construction of second road base tunnel, are pointed out. 1...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-007
... Association (2003) after the displacement of section is judged to converge. Road tunnels in Japan are periodically inspected every five years, referring to the technical regulation by MLIT (2014). After tunnels open for operation, the countermeasure, installing inverted arches with large cracks over lining...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-002
... incompetent rock mass calculation convergence sustainable lining rock mass lining concept deformation ?ABSTRACT: The Konrad mine near Salzgitter, Germany, is currently in the process of being rebuilt as a repository for radioactive waste with negligible heat generation. Due to the operating...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-131
... convergence France cavern stress state rail transportation power plant calculation application support system underground cavern tunnel excavation instability Hoek rock mass design method Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-172
... Abstract The initial objective has been to establish a methodology to use the convergence-confinement method in order to design the roadways support based on yielding steel arches, obtaining the same results than those from an empirical method widely used in coal mines. The mining method is...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-148
... Abstract Within the Saint-Martin-La-Porte access gallery project, a comprehensive monitoring progamme was implemented in order to explore its extreme squeezing behavior. This paper presents a comprehensive analysis of the geotechnical data, including convergence and extensometric measurements...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-185
... Abstract Potentiality of plastic deformation in tunnels in the Himalayan rock mass is considerable. Tunnel convergence and squeezing phenomena have therefore been serious issues for successful tunnelling in the region. Large tunnel deformations have been recorded in many occasions...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-085
... measurements to identify the properties that best model the behaviour of the mass and hence determine the best characterisation method. The results show that the monitoring procedure defined is highly effective, thanks to a number of innovations, such as the measurement of the complete convergence of the...

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